Clixsense makes sense:

Ever thought of trying a ptc site?

http://www.clixsense.com/?2731335

If you cannot click on the above link, simply copy and paste it to your web browser.

This is a PTC (paid to click) PPC (pay per click) site where you can earn 0.01-0.02 per click. Keep in mind that when you open one of your clixsense ads, you will need to keep the ad opened for about 30 seconds to get credit for it.

Payments are automatically disbursed by check and mailed to the postal address on your profile on or before the 10th day of each month for earnings of the prior month provided that your account balance has reached the minimum payout level of $10 (you may select a higher minimum payout if desired). If your account balance is less than $10 (or the minimum payout you selected), earnings will carry forward until such month as you have met the minimum check requirement.

They also have a referral program that I found is where you will earn a lot more money. To be honest, you can earn a substantial amount if you put in the time and effort to refer enough people.

In addition, you can check your account as little as only once a week to do your own clicks if you want. That way you will have a lot more time for referring other people. Feel free to use the link above to sign up.

Here is a bit of information on their referral program:
Free members (Non-Premium members) will receive $0.01 for each referral and will receive $2.00 if their direct referral upgrades to a Premium account. You will also receive 10% of revenues generated from your referrals' ad purchases.

Premium Members are paid affiliate commissions 8 levels deep!

PREMIUM MEMBERS – You are instantly paid $0.10 for each new referral. When one of your direct referrals upgrades their account to a Premium membership, you are instantly paid $2.00 for that member's upgrade. (You are also paid commissions on any ads that member clicks on) When that member refers a new member who upgrades to premium you are instantly paid a $1.00 override commission. You just got paid for doing NOTHING! Even better, that same scenario pays EIGHT LEVELS DEEP!

Premium Members Bonus Clix - When a Premium member refers a member who upgrades their account to Premium status, not only do you receive the already great commission structure, you are now getting paid 10% of the ad value for each ad your Premium first level downline members view! Note: To earn the additional commissions you must be a Premium ClixSense member. You will only be paid the bonus commissions if on "clix" made by members of your first level downline who are also Premium members.

ClixSense expects to pay commissions for quality referrals to the website. You may not use any type of incentive program(s) to gain referrals.